Auxiliary air-valve for gas-engines.



M. CARABALLQ. AUXILIARY AIR VALVE FOR GAS ENGINES.

' APPLICATlON- FILEDOCT. 20, l9l6f.

1,251,962. fPzitented Jan. 1,1918.-

- MTO-LITHO by SACKS" I WILNELMS CORP NM air valve constructed in accordance with my invention, and which latter'is shown partly ua-a'rin ca'nananno,

or TAMPA, rnonrzoa.

Auxmmnr Ara-VALVE ronens-nnemns.

To all whom it may concern:

Be it known that I, MARTIN F a citizen of the United States, residingtat Tampa, in the coiinty of Hillsborough and State of Florida, have invented certain new and useful Improvements in AuxiliaryAir- Valves' for Gas-Engines; and I do hereby declare the following to be a full, clear, and as exact description of the invention, such will enable others skilled in the. art to which it zipper-tame to make and'use the same.

he present invention relates-to new and useful improvements'in auxiliary air valves for gas engines of the type in which an air supply is "connected to the intake of an internal'combustion en 'n'e between the carbureter and engine cy inders 'for'supplying h additional air to "be mingled with t e fuel mixture prepared by the carbureter, and

thus diluting such fuel mixtureto a degree .,that is controlled by said air valve.

"It is theprimar object of the present invention to provi e such air valve under the automatic control of the throttle-actuating mechanism to automatically dilute the fuel mixture by the addition of the auxiliary vidual air when the engine speed increases and when the throttle is opened wider to per-- mit the entrance of a charge of the fuel, v

Another object of the :presentinvention lies in providing an improved device of the character above specified-in which the indi- E'arts will be sim le and the device" as a w ole, of simplifie construction and operation; and in which there-is provided proportionately larger an; im rovedair *valve structure and improv connection for coupling the air valve to the throttle controllin mechanism.

In the accompanying rawings forming a art of this. application, and in which simiar reference symbols indicate correspondin 1 parts inthe-several views:

, Figure 1 i'sa side elevational view pf'an engine shown as equipped'with an auxiliary in section,

Fig; 2 is an'enlarged-sectional view of the improved air valve construction.

ig. 3 is a perspective view of 'the connec tion between the air mechanism; and

Fig. 4 is aperspective view of one form,

valve and throttle n w r: Patent. Application me October eo,ie'1e. Serial n. 120,720. p

. of an elbow used 'inconnecting the air valve CARABAnm,

to the engine intake pipe;

' Referr ng more particularly to the draW- ings, anyapproved type of internal combustion engine is indicated at 1 in Fig, 1, the

same being equipped with the usual intake The exhaust manifold- 3 connects in the usuallmanner with the exhaust pipe 4-" while the intake manifold 2 is connected by the intakepipe 5 with thecarbureter' designated at 6, which prepares'the' mixture n the nsual manner.

' In accordance with" the present invention,

, Patented. Jan. 1,1918.

- and exhaust .maniiioldsBand 3, respectively.

an auxiliary valve is connected at any point between the carburetor 6 and the engine cylinders 1, it beingadvantageously fitted in the intake pipe 5 substantially at the point shown in Fig. 1. "The connection of the air device with the intake; 5 is pref erably made by an elbow T, w 10b is shown more particularly in Fig. 4 as-having one end 8 threaded for the pu into said intake pipe 5 'sai elbow 7 having its othem-end 9 formed with abayonet slot 10, or other coufilingmeans, through'which' the casing or s ell of the air valve is attached-thereto.

ose of screwing The air valve is-more particularly dis:

a shell or casing 11 having a reduced end 12 closed in Fig. 2, where it is seen to comprise forming a shoulder 13 wh1ch furnishes a seat.

for a cylindrical valvelt. On the reduced end 12 is one or more pins 15 designed to engage the" bayonet slots 10' in" the elbow 7, whereby a readily removable conn'ectionyis made between the ,valve casing 11 and the intake ofthe engine I u a v The cylindrical valve14 is free to reciprocate in the casing '11, and is normally and yieldingly held against its seat 13 by a spring 16 which 'bea'rs,:'at its outer against a ca 17 screw threaded or otherwise removably tted on the casing 11. The ca 17 has a central perforation through whic slidably passes a stem 18 connected to the valve body 14 within thecasing 11,'and atits ito outer end is bentat right angles, as indicated at 19, and engaged through'a vertically extending slot 20 in the upper end or a lever 21. I i Y i This lever 21 is fulcru'med' at 22, as by a rivet, screw, or other means, on a bracket 23 termed integral with a hollow 24;

rod 32 when the same is shifted in either direction to open wider or cut down the throttle 33.

I blocks, and having its lower'longitudinal extending at right angl s'to the valve casing 11, and advantageous} cast in one. iece therewith; there being a port 25 'estab ishing communication between the hollow stock 5 24 and valve casing to admit air from the outside atmosphere in a manner which will be hereinafter more fully explained.

The lower end of the stock 24 isopen, and connects with a pipe or flexible tube 26 havl0. .ing a-fiange 27 engagin and held tightlyagainst the tower end 0 the stock 24 by a cap nut 28-threaded or otherwise removably secured thereon. A packing or gasket 29 may beinte'rposed between the flange 27, and

nut 28, if desired or found'necessary.

. The flexible tube or pipe26 runs to cylindrical or other shaped sleeve 30, em

. bracing the exhaust pipe 4 and having open communication at one or' more ends through one or more openings 31-with the outside atmosphere. This sleeve 30-,acts inthe capacity of a heater-for receiving air from the outside atmosphere through the apertures 31, and circulating the. same in contact ;withthe heated exhaust pipe 4, through which a' higher temperature is mparted to the air; and thereafter {such air is delivered through i the flexible tube 26 to the stock 24,. and

, throughthe valve 14 to the intake pipe 5, where it will commingle with the mixture from the carbureter 6,

The lever 21 extends down, as seen in Fig. 1, to the side of and below the operating rod 32 of the throttle 33. This lever 21 is dethe throttle 33, and for this purpose I provide the loose'connection shown in enlarged perspective in Fig. 3. This connectionadvantageously consists in a pair of metallic blocks 34and' 35, fitted together and secured as by a screw-36 or other convenient means.

- The blocks 34 and 35, adjacent their lowerends are'formed with complemental semicylindrical channels or grooves 37 and 38, respectively,- which, when the blocks are assembled together, unite to constitute a complete circular opening therebetween for receiving-and tightly embracing the throttle .control rod 32. Through this means a connection is mounted to move'with said control Between the metallic blocks 34 and is clamped a plate 39. extending beyond said edge 40 bent to conform to the curvature oh the control rod '32 to assist in holding the connection thereon and to'prevent its swingmg upwardly. At its outer free end the plate 39 is split or divided, as indicated at.-

in Fig. 1. There, is a circular notch 44 the latter.

vvance the speed of thefengine, the contrpl signed to be simultaneously actuated .with

formed in the base of the lug42 to overlie the control rod 32 and prevent the outer end of the connection from dropping beneath A concise description of'the operation will sufiiceto enable those skilled in the art to understand thoroughly the working of the invention. L

- The control rod 32 is actuated by the operator in the usual manner from the steerin column, and by such control rod 32 the throttle 33 is opened or closed and the en- 'gine speedis advanced or diminished. ac r J cording-1y; It isdesirable that the fuel mixture prepared by the carbureter 6 be diluted" with addition-ahair, especially for advanced speeds of the engine, and by the use of air introducing ineans between the carbureter and engine the-fuel consumption has been found to be greatly reduced, and the operating cost of automobiles and other gas engines consequently greatly diminished.

In opening the throttle 33 wider to ad -v rod 32 will be moved to the left, and through the loose; connection will shift the lever 21, moving its upper slotted end to the right and drawing upon the stem 18 and valve 14. In proportion, therefore, to the opening of the throttle/33, will be the opening move- -ment I of the auxiliary air valve 14, which will move to the right-in the casing 11 and uncover the port- 25 therein,- thus placing the stock 24 in open communication with the intake pipe 5. 'The heated air prepared in the sleeve 30 and admitted to the stock 34 from the flexible tube 26, will thus be drawn into the intake pipe 5 under the influence of the suction of the engine '1, and will commingle with the mixture prepared by the carbureter 6 and dilute such mixture in proportion to the speed on the engine. When the throttle rod 32 is movedto the right to cut down, the speed of the engine, 110 the connection will move away from the lever 21, and in so doing will permit the spring 16 to return theauxiliary air valve 14 to its seat 13, thus reducing or cutting off entirely the additional air supply; Itwill be found from the foregoing that I have provided an improved'auxiliary' ai-r valve together with an improved mechanism foractuating the same automatically from the movement of the throttle control, and12o that my device is simple in construction and easy and automatic in operation, as also ex- -tremely cheapto manufacture and capable of being installed on existing types of as engine without alteration in eonstructlon 'thereo Itis obvious that those skilled in the art may vary the details of construction and arrangements of parts without departing from the'spirit f my invention, and there- 1ao memes fore I do not wish to be limited to such a features except as may be required by the claims.

I claim: a V 1. The combination of a movable element,

a valve, a lever connected to actuate said valve,and a loose connection on sa d movable element engaging said lever, to shift the valve, said connection including a plate hav element, substantial y as described.

crating rod, oppose 3. The combination with an operating rod 20 of a valve, a lever for actuating said valve a loose connection between said lever and operating rod including a plate having its lower longitudinal ed e bent'aboiit sai opblocks clamped to gether, on opposite sides of said plate and having recesses therein conforming to said operating rod and received thereby, said plate having a lug cut therefrom and bent to "provide a slot for loosely receiving said 80 lever, said lug provided with a slot at one end to engage the lever and movethe same when theoperating rod is shifted in one direction only, substantiall .as described;

In testimony whereof, afiix my signa- 35 ture. v.

' MART-IN OABABALLQ. 

